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1. CN112011696 - Method for enriching platinum group metals in aluminum-based waste catalyst by pyrogenic process

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Office
China
Application Number 202010835163.7
Application Date 19.08.2020
Publication Number 112011696
Publication Date 01.12.2020
Grant Number 112011696
Grant Date 18.05.2021
Publication Kind B
IPC
C22B 11/02
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
BPRODUCTION OR REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
11Obtaining noble metals
02by dry processes
C22B 7/00
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
BPRODUCTION OR REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
7Working-up raw materials other than ores, e.g. scrap, to produce non-ferrous metals or compounds thereof
CPC
C22B 11/028
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
BPRODUCTION AND REFINING OF METALS
11Obtaining noble metals
02by dry processes
021Recovery of noble metals from waste materials
026from spent catalysts
028using solid sorbents, e.g. getters or catchment gauzes
Y02P 10/20
YSECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
10Technologies related to metal processing
20Recycling
C22B 11/026
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
BPRODUCTION AND REFINING OF METALS
11Obtaining noble metals
02by dry processes
021Recovery of noble metals from waste materials
026from spent catalysts
C22B 7/009
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
BPRODUCTION AND REFINING OF METALS
7Working up raw materials other than ores, e.g. scrap, to produce non-ferrous metals and compounds thereof; ; Methods of a general interest or applied to the winning of more than two metals
009General processes for recovering metals or metallic compounds from spent catalysts
Applicants UNIVERSITY OF SCIENCE & TECHNOLOGY BEIJING
北京科技大学
Inventors DING YUNJI
丁云集
ZHANG SHENGEN
张深根
Agents 北京金智普华知识产权代理有限公司 11401
Title
(EN) Method for enriching platinum group metals in aluminum-based waste catalyst by pyrogenic process
(ZH) 一种火法富集铝基废催化剂中铂族金属的方法
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Abstract
(EN) The invention relates to the technical field of platinum group metals (PGMs) recovery, and provides a method for enriching platinum group metals in an aluminum-based waste catalyst by a pyrogenic process. For the waste catalyst for Al2O3 carrier, according to the method for capturing the platinum group metal through the pyrogenic process iron, a CaO-Al2O3-Fe2O3-B2O3 slag system is adopted, efficient enrichment of the platinum group metal is achieved through slag-iron separation, it is avoided that the CaO-MgO-Al2O3-SiO2 slag system generates insoluble platinum group metal-ferrosilicon alloy, and the recovery rate of the platinum group metal is increased. The method has the characteristics that the slag amount is small, the Fe-PGMs alloy does not contain silicon, the recovery efficiency ishigh, and the cost is low, and is suitable for industrial production.
(ZH) 本发明涉及铂族金属(PGMs)回收技术领域，提供了一种火法富集铝基废催化剂中铂族金属的方法。针对Al2O3载体废催化剂，公开了火法铁捕集铂族金属的方法，采用CaO‑Al2O3‑Fe2O3‑B2O3渣系，经渣铁分离实现高效富集铂族金属，避免了CaO‑MgO‑Al2O3‑SiO2渣系生成难溶铂族金属‑硅铁合金，提高了铂族金属的回收率。本发明具有渣量少、Fe‑PGMs合金不含硅、回收效率高、成本低的特点，适合于工业化生产。
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